<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <meta name="referrer" content="never">
  <title>九宫格浮动</title>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <style>
  /* 九宫格浮动 */
    .base {
        height: 9em;
        padding: 3em;
        width: 9em;
        transform: rotateX(45deg) rotateZ(45deg);
        transform-style: preserve-3d;
    }
    .cube,.cube:after,.cube:before {
        content: '';
        float: left;
        height: 3em;
        position: absolute;
        width: 3em;
    }
    .cube {
        background-color: #05afd1;
        position: relative;
        transform: translateZ(3em);
        transform-style: preserve-3d;
        transition: .25s;
        box-shadow: 10em 10em 1.5em rgba(0, 0, 0, 0.1);
        animation: anim 1s infinite;
    }
    .cube:after {
        background-color: #049dbc;
        transform: rotateX(-90deg) translateY(3em);
        transform-origin: 100% 100%;
    }
    .cube:before {
        background-color: #048ca7;
        transform: rotateY(90deg) translateX(3em);
        transform-origin: 100% 0;
    }
    .cube:nth-child(1) {
        animation-delay: 0.05s;
    }
    .cube:nth-child(2) {
        animation-delay: 0.1s;
    }
    .cube:nth-child(3) {
        animation-delay: 0.15s;
    }
    .cube:nth-child(4) {
        animation-delay: 0.2s;
    }
    .cube:nth-child(5) {
        animation-delay: 0.25s;
    }
    .cube:nth-child(6) {
        animation-delay: 0.3s;
    }
    .cube:nth-child(7) {
        animation-delay: 0.35s;
    }
    .cube:nth-child(8) {
        animation-delay: 0.4s;
    }
    .cube:nth-child(9) {
        animation-delay: 0.45s;
    }
    @keyframes anim {
        50% {
            transform: translateZ(0.5em);
        }
    }
  </style>
</head>
<body>
  <div class="base">
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
    <div class="cube"></div>
  </div>


  <script type="text/javascript">

  </script>

</body>

</html>